2018 Audi S6 • Compare 2 used cars with valuation

Market overview: March-2026 Price Analysis: A used Audi S6 from 2018 currently costs between £23,495 and £24,799. On average, the mileage for this year stands at 59,810 miles. The depreciation and price trend over the last 12 months is £0.

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Carwow

2018

(2018) Mercedes C43 AMG Premium Plus 367 HP

£25,799

Fair price

You save £901

PE32 1DD Pott Row, Norfolk

183 g CO2/km comb. - 367 HP (269 kW) - 8.0 Mpg

Carwow

2019

(2019) Mercedes SL400 AMG line 367 HP

£29,990

Good price

You save £2,610

RG1 8EQ Berkshire, Berkshire

191 g CO2/km comb. - 367 HP (269 kW) - 9.1 Mpg

Carwow

2017

(2017) Mercedes C43 AMG Premium Plus 367 HP

£21,495

Fair price

You save £605

BL1 3DE Greater Manchester, Manchester

183 g CO2/km comb. - 367 HP (269 kW) - 8.0 Mpg

Carwow

2020

(2020) Mercedes C43 AMG Premium Plus 390 HP

£26,995

Fair price

You save £1,205

EH27 8DF West Lothian, West Lothian

225 g CO2/km comb. - 390 HP (286 kW) - 9.9 Mpg

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Used (2018) Audi S6 450 HP | Rare vehicle

- TFSI Quattro 4dr S Tronic

2018
36,120 miles
4.0L Petrol
Sedan
Automatic
450 HP (330 kW)
mpg: 9.2
CO2: 214 g CO2/km comb.
Details

£24,799

£25,999

Rare vehicle

CW7 Cheshire West And Chester, Cheshire

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-3%

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Used (2018) Audi S6 Black Edition | Rare vehicle

Avant 4.0 TFSI V8 Black Edition

2018
83,500 miles
Trim level: Black Edition
4.0L Petrol
Estate
Automatic
Details

£23,495

£24,295

Rare vehicle

Motors.co.uk

L15 8HE Wavertree, Merseyside

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Carwow

2018

(2018) Mercedes C43 AMG AMG 390 HP

£21,995

Fair price

You save £805

WV10 0AE West Midlands, West Midlands

223 g CO2/km comb. - 390 HP (286 kW) - 9.6 Mpg

Carwow

2019

(2019) Mercedes SL400 AMG line 367 HP

£27,795

Super price

You save £4,005

DE73 7HL Stenson, Derbyshire

191 g CO2/km comb. - 367 HP (269 kW) - 9.1 Mpg

Carwow

2019

(2019) Mercedes SL400 AMG line 367 HP

£29,995

Good price

You save £2,505

MK17 0PP Little Horwood, Buckinghamshire

191 g CO2/km comb. - 367 HP (269 kW) - 9.1 Mpg

Carwow

2018

(2018) Mercedes C43 AMG Premium 367 HP

£22,995

Good price

You save £1,405

YO19 5PA Dunnington, North Yorkshire

185 g CO2/km comb. - 367 HP (269 kW) - 8.0 Mpg

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